以下为句子列表：
英文: A new method of absolute calibration of photodetector sensitivity based on spontaneous parametric down-conversion(SPDC) biphoton field is described.The process of SPDC is studied theoretically.The single photon detection probability and two-photon coincid
中文: 讨论了一种基于自发参量下转换双光子场绝对校准光电探测器灵敏度的新方法，着重推导了对自发参量下转换过程中产生的单光子的探测概率和双光子的符合速率，从而阐明了绝对测量光电探测器量子效率的原理.基于这一方法对光子计数型光电倍增管的响应灵敏度进行了测量，并将实验结果与常规方法测得的结果进行了比较.
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英文: A parametric region of stability for parabolic systems with time delay is given.
中文: 并给出了一类时滞抛物系统稳定的参数区域。
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英文: Abstract: In this paper, a new approach of parametric design of ship nodes is provided which enables designers to build new types of ship nodes by selecting model-operations interactively.
中文: 文摘:本文通过对船舶节点和节点设计方法的考察，应用基于构造过程的约束求解方法建立一种使设计人员利用交互手段选择有关模型操作建立船舶新节点类型的参数化设计方法。
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英文: Abstract: In this paper,empirical Euclidean likelihood ratio statistics are constructed for parametric components in a partly linear model,and its theory asymptotic confidence regions are constructed for parametric components in a partly linear model.
中文: 文摘:构造了部分线性模型参数的经验欧氏似然比统计量，并讨论了它的极限分布，由此可构造部分线性模型参数的渐近置信域.
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英文: Abstract: This paper has deduced a new method for risering， Δ—Parametric method.It has proved with the test curve of the British Castin g P ractice Commission.Practical results have well perfected furt her the perimetrischen quotlent method for risering.A
中文: 文摘:提出的冒口设计新方法—Δ参数法，与英国铸造实践委员会给出的实验曲线相互印证其实用性，进一步完善了冒口设计的周界商法；得出了冒口补缩效率与铸件和冒口的周界商比值成正比的结论。
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